Volume 9, Issue 4 (Journal of Science and Technology of Greenhouse Culture 2019)                   2019, 9(4): 1-14 | Back to browse issues page


XML Persian Abstract Print


Dept. of Hort., Faculty of Agric., Isfahan Univ. of Technol., Isfahan, Iran.
Abstract:   (3387 Views)

Jasmonic acid (JA) and salicylic acid (SA) work as a message transfer agent against biotic and abiotic stresses such as salinity. For studing the effect of JA and SA on growth, physiological and photosynthesis changes of tomato under salinity stress, a factorial experiment, based on completely randomized design, was performed in the Research Greenhouses of Isfahan University of Technology. Treatments were different salinity levels (S0= control, S1= 100 mM, S2= 150 mM and S3= 200 mM), different levels of JA (JA1= control, JA2= 1 mM and JA3= 2 mM) and SA (SA1= control and SA2= 10 mM) with 3 replicates. Results showed that SA decreased fresh and dry weight of the shoots in S0 and increased in S3. In S1 and S2 salinity levels, high concentration of JA (JA3) decreased fresh weight of the shoots. Addition of JA increased the Plant antioxidant activity in S0 and S1 and decreased it in S2. The antioxidant activity and prolin content were increased at low levels of salinity and JA and SA application. But, the effects were not significant at high salinity levels. Generally, it seems that using JA and SA at low levels of salinity, which change the photosynthesis and chlorophyll content, was more effective than high salinity levels. Also, lower concentrations of JA was more effective than higher concentrations

Full-Text [PDF 128 kb]   (1817 Downloads)    


Type of Study: Research |
Received: 2016/06/1 | Accepted: 2017/08/18 | Published: 2019/03/15

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.